ETSI TS 125 331 V12.3.0 (2014-10)

Universal Mobile Telecommunications System (UMTS); Radio Resource Control (RRC);

Protocol specification (3GPP TS 25.331 version 12.3.0 Release 12)

TECHNICAL SPECIFICATION

ETSI

ETSI TS 125 331 V12.3.0 (2014-10)13GPP TS 25.331 version 12.3.0 Release 12

Reference RTS/TSGR-0225331vc30

Keywords UMTS

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ETSI

ETSI TS 125 331 V12.3.0 (2014-10)23GPP TS 25.331 version 12.3.0 Release 12

Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http://ipr.etsi.org).

Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document.

Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).

The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables.

The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http://webapp.etsi.org/key/queryform.asp.

Modal verbs terminology In the present document "shall", "shall not", "should", "should not", "may", "may not", "need", "need not", "will", "will not", "can" and "cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions).

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

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ETSI

ETSI TS 125 331 V12.3.0 (2014-10)33GPP TS 25.331 version 12.3.0 Release 12

Contents

Intellectual Property Rights ................................................................................................................................ 2

Foreword ............................................................................................................................................................. 2

Modal verbs terminology .................................................................................................................................... 2

Foreword ........................................................................................................................................................... 40

1 Scope ...................................................................................................................................................... 41

2 References .............................................................................................................................................. 41

3 Definitions and abbreviations ................................................................................................................. 44 3.1 Definitions ........................................................................................................................................................ 44 3.2 Abbreviations ................................................................................................................................................... 47

4 General ................................................................................................................................................... 50 4.1 Overview of the specification ........................................................................................................................... 50 4.2 RRC Layer Model ............................................................................................................................................ 51 4.3 Protocol specification principles ...................................................................................................................... 54

5 RRC Functions and Services provided to upper layers .......................................................................... 54 5.1 RRC Functions ................................................................................................................................................. 54 5.2 RRC Services provided to upper layers ............................................................................................................ 55 5.3 Primitives between RRC and upper layers ....................................................................................................... 55

6 Services expected from lower layers ...................................................................................................... 55 6.1 Services expected from Layer 2 ....................................................................................................................... 55 6.2 Services expected from Layer 1 ....................................................................................................................... 55 6.3 Signalling Radio Bearers .................................................................................................................................. 55

7 Protocol states ........................................................................................................................................ 56 7.1 Overview of RRC States and State Transitions including GSM and E-UTRA ................................................ 56 7.2 Processes in UE modes/states ........................................................................................................................... 57 7.2.1 UE Idle mode .............................................................................................................................................. 57 7.2.2 UTRA RRC Connected mode ..................................................................................................................... 57 7.2.2.1 URA_PCH or CELL_PCH state ........................................................................................................... 57 7.2.2.2 CELL_FACH state ................................................................................................................................ 58 7.2.2.3 CELL_DCH state .................................................................................................................................. 60

8 RRC procedures ..................................................................................................................................... 60 8.1 RRC Connection Management Procedures ...................................................................................................... 61 8.1.1 Broadcast of system information ................................................................................................................ 61 8.1.1.1 General .................................................................................................................................................. 62 8.1.1.1.